Carbureting-lamp.



` No. 7|4,s96. Patented nec. 2, |902` o. n. HowELL.

CARBURETING LAMP. (A umm mea occ. 4, 1901.)

ments.

NITED ORANGE D. HOWELL, OF GOSI-IEN, INDIANA, ASSIGNOR OF ONE-HALF TO ORRIN WATTS, OF GOSI-IEN, INDIANA.

CARBURETING-LAM P.

SPECIFICATION forming part of Letters Patent No. 714,696, dated December 2, 1902.

Application iiled October 4, 1901. Serial No. 77,596. (No model.)

citizen of theUnited States, residing at Goshen, in the county of Elkhart and State of Indiana, have invented a new and useful Self- Generating Gas-Lamp, of which the following is a specification.

My invention is an improved self-generating gas-lamp for burning the vapor of gasolene or other liquid hydrocarbon; and it consists in the peculiar construction and combination of devices hereinafter fully set forth and claimed.

One object ofmy invention is to combine with the said gasolene-feeding valve a valve which'operates simultaneously therewith to control the supply of vapor to the burner.`

A further object of my invention is to eifect improvements in the means for evaporating the gasolene in the carbureting-chamber.

In the accompanying drawings, Figure 1 is a side elevation, partly in section, of a selfgenerating lamp embodying my improve- Fig.2 is a detail sectional view of the same. Fig. 3 is a similar View showing another part of the lamp. Fig. 4. is a transverse sectional View taken on a plane intersecting the generating tube or chamber. Fig. 5 is a similar view on a higher plane, showing the means Afor operating the gasolenefeed valve.

The body of my improved gasolene-burning lamp comprises, essentially, a reservoir 1 for gasolene or other liquid hydrocarbon, a generating-chamber 2, which is here shown as a vertically-disposed tube, and a pipe 3 for feeding the vapor to the lamp-burner 0o. The burner may be of any suitable construction. The lower end of the reservoir 1, which is of cylindrical form, is of inverted-conical shape and is provided with a depending iiange 4. The same is disposed in the upper end of the tube 2, which forms the generating chamber, and is secured thereto by screws, asat 5, Fig. 2. In the 'center of the reservoir lis disposed a vertical feed-tube 6, the ends of which project, respectively, beyond theupper and lower ends of the said reservoir. On the upper end of the said feedtube 6 is screwed a suspending-hook 7,Which has an arm 8, that is approximately horizontal, is of suitable length to extend some distance beyond opposite sides of the axis of the reservoir and generating-chamber, and is provided on its under side with a series of adjusting-notches 9, adapted to `engage a ring or other supporting device from which the lamp is hung, as from a ceiling, and by reason of the said extended and notched arm 8 the said hook may be so adjusted with reference to its support as to adapt the lamp to be suspended in a perfectly vertical position.

The lower end of the feed-tube 6, which extends downwardly some distance into the upper end of the generating-tube 2, is screwthreaded, as at 10. That portion of the feedtube 6 which is disposed within the reservoir 1 is provided with openings 11, by means of which gasolene may be drawn from said reservoir to said tube. In the lower end of the pipe 6 is secured a feed-plug 12, which is cylindrical in form, is provided in its periphery with one or more feed-grooves 13, and its lower end is tapered and of conical form, as at 111. A packing-cap 15 is screwed on the lower portion of the feed-tube 6 and is provided with suitable packing 16, which is preferably made of asbestos. A tubular sleeve 17 has its upper portion interiorly threaded and screwed on the lower portion of the feedtube 6 and disposed Within the packing-cap 15. The lower end of the said sleeve 17 is of inverted-conical form and is provided with a discharge-opening 18. It will be understood from the foregoing and by reference to Fig. 2 of the drawings that by turning the sleeve 17 in one direction, so as to screw the same upwardly on the feed-tube 6,the tapered lower end of the said sleeve will snugly contact with and lit against the tapered lower end of the feed-plug, so as to effectually cut olf the supply of gasolene from the reservoir. It will be understood also that by turning the said sleeve in the reverse direction to lower the same slightly gasolene will be permitted to flow from the groove or grooves 13 of the feed-plug through the lower portion of the said sleeve 17 and to be discharged d iop by drop through the opening 1S. The said feedplug and the said sleeve constitute a feedvalve to supply gasolene drop by drop to the generating-chamber, in which the same is evaporated to form vapor and mixed with air in quantities to enable the vapor to burn brilliantly when ignited at the burner.

In the generatingtube 2 is disposed an evaporating-screen-19, of ribbon-like formation, which extends from the lower end of the said generating-tube to within a suitable distance of the upper end thereof and which is bent in opposite directions at suitable regular distances throughout its length to form a series of connected inclined ascending planes 20. The said evaporating-screen may be made of wire-ganze or other suitable foraminous material. On certain of the planes 20, preferably at suitable regular `distances apart, are placed pieces of asbestos 21 or other suitable absorbent material. The said evaporating-screen is so disposed within the generating-tube as to be out of contact with the sides of the latter, and to thus maintain 1he said evaporating-screen out of contact with the said generating-tube I provide said screen on opposite sides with outwardlypro jecting spurs 22, which also extend upwardly and bear against opposite sides of the generating-tube, as shown in Figs. 1, 3, and 4.

It will be understood from the foregoing that the drops of gasolene which fall upon the upper portion of the evaporating-screen and which traverse the same downwardly by capillary action are diused over the surfaces of the said evaporating-screen and evaporated before reaching the lower end thereof. The spurs 22 prevent the gasolene from running from the evaporating-screen to and down the sides of the generating-tube, and hence no gasolene as such in a liquid form accumulates in the lower end of the generating-tube. The asbestos or other absorbent pieces 21, withwhich theevaporating-screenisprovided, also serve to promote the evaporation of the gasoleneand to prevent the same from reaching the bottom of the generating-tube in liquid form. However, as an additional precaution and to prevent the possibility of 'liquid gasolene finding its way into the tube 3, which supplies vapor to the burner, I provide an overflow-tube 23, which is disposed in and rises from the bottom of the generating-tube for a suitable distance and which communicates with and forms practically an extension of the upper end of the vapor-tube 3, as shown in Fig. 3. By this means it will be understood that gasolene in a liquid form would have to accumulate in the bottom of the generating-tube in such a quantity as to overflow the upper end of the tube 23 before it could pass into the vapor-tube 3, which in practice would never occur, owing to the facts that the gasolene is supplied drop by drop to the evaporating-screen and is evaporated during its passage downward on the latter. The generating-tube is provided near its upper end with suitable openings 24 for the admission of air to be mixed with the vaporin the said generating-tube and supplied therewith to the burner.

In one side ofthe generating-tube is disposed a valve-operating rod 2,5, which passes downwardly from thesaid generating-tube to apoint below the lower arm of the curved vapor-tube 3 and has a bearing 26 on the said lower arm of said vapor-tube. At the llower end of the said .valve-operating rod is a thumb-piece 0r head'27, by means of which said rod may be readily turned in opposite directions. A stop which is in the form of an arm 28 extends from the said operatingarm 25 and is secured thereto at a point opposite the lower arm of the vapor-tube 3. Preferably the said stop-arm is provided on one side with the word Off and on the other side with the word On for the purpose hereinafter described.'

At the upper end of the operating-rod 25 is a crank 29. The same engages a slot 30`in the outer end of an operating-arm 31, which is attached to the sleeve 17 of the gasolenefeed valve. It will be understood that by turning the said operating-rod the said feedvalve may be turned to establish or cut od the supply of gasolene from the reservoir to the generating tube or chamber. I also provide a vapor-valve 32, which is attached to and operated by the rod 25. The said valve operates on the upper end ofthe tube 23, and when the rod 25 is appropriately turned opens and closes the upper end of said tube 23 to permit the passage of vapor to the burner or to cut off the same. It will be understood that the said vapor-valve and the gasolenefeed valve are operated simultaneously by the rod 25, so that said valves are opened and closed simultaneously, and hence the supply of vapor from the generating-tube to the burner is cut oif simultaneously with the supply of gasolene from the reservoir to the generating-tube. The words On and O on the stop-arm 28 are respectively displayed when the valves are turned to the positions indicated thereby.

Having thus described my invention, I claim- 1. In a lamp of the class described, in combination with a generating-chamber, an evaporating-screen therein, having outwardly and upwardly projecting spurs to prevent said screen from contacting with the sides of said chamber, substantially as described.

2. In a lamp of the class described, the combination of a reservoir, a gasolene-feed valve depending therefrom, a generating-chamber IIO in which said feed-valve is disposed, means to admit air to said generating-chamber, a vapor-supply valve, and means to simultaneously operate said feed-valve and vapor-supply valve, substantially as described.

3. In a lamp of the class described, the combination of a reservoir, a gasolene-feed valve, a generating chamber in which said feedvalve is disposed, means to evaporate gasolene in said generatingchamber, a vaporsupply valve in said generating-chamber, and an operating-rod, connected to said valve, to

simultaneonsly operate the same, substan- "tially as described.-

4. In a lamp of the class described, the coms bination of a reservoir, a gasolene-feed valve depending therefrom, a generating-chamber in which said feed-valve is disposed, an overflow-pipe in the bottom `of said generating* chamber, a vapor-valve to open and close said overflow-pipe, andan operating-rod connected to said valves, to simultaneously operate the same, substantially as described.

5. In a lamp of the class described, the combination of a reservoir and a generatingchamber depending therefrom, with a feedtube depending from said reservoir and disposed in said generating-chamber, a feed-` valve on said tube and having a slotted oscillating member, and an operating-rod extendinginto said generating-chamber and having a crank engaging said slotted oscillating member of said feed-valve, substantially as downwardly through said reservoir, and hav ing its upper end projecting above the same, and a suspending-hook secured to said upper projecting end of said feed -tube, substantially as described. i

7. In a lamp of the class described, the combination ofa generating-chamber, a gasolenefeed valve therein, a vaporsupply valve therein, a Vapor-tube leading from said generating-chamber to the burner, an operatingrod having its bearings in said generatingchamber and on said vapor-tube, connections between said rod and said valves to simultaneously operate the latter, and a stop-arm on said operating rod, said stop-arm coacting with the vapor-tube to limit the movement of the rod and valves, substantially as described.

In testimony that I claim the foregoingas my own I have hereto affixed my signature in the presence of two witnesses.

ORANGE D. IIOVELL.

Titnessesz A. J. I-IoovER, i D. J'. TROYER. 

